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This doesn't measure CO2 levels. It measures volatile organic compounds and calculates the amount of CO2 that would cause the same greenhouse effect.

>The SGP30 does have built in calibration capabilities, note that eCO2 is calculated based on H2 concentration, it is not a 'true' CO2 sensor for laboratory use.

Java/.NET/C++/etc. people don’t have the urge to publish every other line of code they deem “useful”. They also don’t have the urge to import said one-liners when writing a helper method in 15 seconds is perfectly adequate.

If only there was some standard format to interchange structured data over pipes, other than plain text delimited with various (incompatible) combinations of whitespaces, using various (incompatible) escaping schemes.

False. Writing a waterfall-style “spec” on paper has nothing to do with formal methods.